fresh air fan bad resistor?, defrost fresh air |
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fresh air fan bad resistor?, defrost fresh air |
Medtner3 |
Jan 21 2022, 10:52 PM
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#1
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Member Group: Members Posts: 180 Joined: 7-July 20 From: Cedar Park Member No.: 24,467 Region Association: None |
update: well, the fan was working now not even that is working. I think I might have fried the motor when I was hooking up the leads to test the fan through the resistor prongs I accidentally let the pos and neg cross ... when it rains it pours not going well today
Edited: I took my fresh air box fan out of the car and tested with a 12 V battery and it spins and works. But the resistor does not seem to work: I put 12V positive lead on the upper right pole where power comes in ( I get 11.84 volts on this terminal when the ignition was on) . ... as I understand it the other three poles are ground for the three fan speeds? So I connect each one to ground and the fan does not work assuming I am testing correctly>>>> can you rebuild a resistor or perhaps clean it with contact cleaner and make it work again https://forums.pelicanparts.com/porsche-911...ower-motor.html https://forums.pelicanparts.com/porsche-914...roster-fan.html |
Dustin |
Jan 24 2022, 12:26 AM
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#2
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Member Group: Members Posts: 111 Joined: 19-August 10 From: Woodland Hills, CA Member No.: 12,072 Region Association: None |
Did you ohm it out?
Ground is the right label for that pin. If you have that resistor pack out of the car and a multimeter it should be pretty easy to confirm if that part is good. You can ohm it from ground to any pin and look for approximately the ohms on the chart for that pin. You can also just check continuity from ground to any pin. |
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